I have Tinder Plus or Gold and didn't get my free monthly Boost.

If you recently renewed your Tinder Plus or Gold subscription, please note that this will not affect your Boost wait time. The 30-day wait period is based off of the last time you used your free monthly Boost, not based on the renewal of, or re-subscription to Tinder Plus or Tinder Gold.

Once you’ve used your free Boost, you will have to wait 30 days to use your next free Boost, unless you choose to purchase additional Boosts.